Tamilselvi P
@cauverycollege.ac.in
Assistant Professor, Department of Information Technology
Cauvery College for Women (Autonomous)
RESEARCH INTERESTS
Ad hoc network, Social Network
Scopus Publications
Scopus Publications
R. Shanmugasundaram, C. Ganesh, P. Tamilselvi, C. S. Ravichandran, and P. S. Mayurappriyan
Springer Nature Singapore
P. Tamilselvi, , and T. N. Ravi
EJournal Publishing
Mobile Ad hoc networks deploy the network with the support of self-organizing and self-configuring mobile nodes. Due to the lack of centralization, the topological structure of the network fluctuates frequently. Preserving stable link communication to obtain reliable data transmission is the key challenge in the dynamic wireless network environment. This stimulates discrepancy on discovered route paths. To address this issue a novel approach called bootstrap aggregated mutual dependency ensemble clustering and learning agent based approach to eliminate stale routes in MANET (BAMDEC-LABA) is introduced. This algorithm is used to identify the stable link based on the metrics such as residual energy, receiving signal strength, less hop count and node behavior. Maximum dependency with less hop count route paths are classified by employing bootstrap aggregation method. Learning agent examines the node behavior and identifies the selfish and corruptive nodes using node cooperativeness and trust value. The occurrence of the link failure due to the malicious nodes intimated to all the nodes with the distribution of route error packet. The inconsistent route path is eliminated from the cache to preserve the link failure. The performance of the proposed approach is evaluated with different performance metrics such as routing overhead, packet delivery ratio, packet drop rate, and delay. When compared to state-of-the-art approaches, the proposed BAMDEC-LABA technique on an average minimizes the routing overhead by 26%, improves the packet delivery ratio by 18%, packet drop rate is considerably reduced by 68% and delay is found to be minimized by 27%. The proposed method outperforms when compared to state-of-the-art approaches.
Mobile Ad-hoc Network (MANET) is a collection of self sustaining mobile nodes which are connected through many wi-fi links to form a temporary communication for sharing information between the users. Mobile nodes behave as a host as well as router. As nodes in MANET posse’s mobility in traits frequently leads to irregular link between the nodes. Link failure directs a significant routing overhead during high mobility and also maintaining all the information associated with nodes and routing paths are considered as an extra overhead on the table. In order to overcome these issues, the routing algorithm to eliminate stare routed in routing cache. The neighbor degree centrality table is introduced to recognize the valuable nodes, using the valuable nodes the routes are discovered and link failure information are disseminated across the network wide. The results and findings show that the elimination of stale routes leads to significant reduction in routing overhead which in turn reduces the route error propagation delay
P. Tamilselvi and C. Ganesh Babu
Springer Science and Business Media LLC
MANETs are self-configured network. Nodes in Manets need not follow a specific infrastructure. Nodes are connected wirelessly and so nodes can travel to any direction. Manets assure that all its nodes are cooperating with each other. Sometimes, some nodes may not be reliable. These unreliable intermediate nodes participate in the packet forwarding and drop the packets instead of forwarding them to the destination node. This type of security attack is called black hole attack (Baadache and Belmehdi in Int Comput Sci Inf Sec 7(1):1–10, 2010). In this paper, an efficient method of route discovery process is used which bypasses the black hole nodes and uses only the reliable route for transmission. The main advantage of using the proposed method is that there is no need to maintain black hole list. So, there is no need to check the black hole list each time during route discovery. Dynamic source routing (DSR) is used for the transmission of packets. The simulations are done to measure packet delivery ratio, packet drop, average throughput, normalized routing overhead and average end-to-end delay. Simulation results shows that the proposed method improves the packet delivery ratio in presence of black hole and reduces the packet drop. Also the communication overhead is reduced which in turn minimizes the resource utilization in Manets.
S. Poongodi and P. Tamilselvi
IEEE
Several medium access control protocols have been proposed in the recent past for vehicles for accessing radio channels and for distributing timely active safety messages for inter-vehicle communication in Vehicular Ad hoc Networks (VANETs). As contention period is high in Medium Access Control (MAC) for channel access, MAC is unable to distribute timely safety messages. To reduce the contention period, Region based Clustering Mechanism (RCM) is applied with MAC protocols. RCM caters to the reduction of contention because the number of vehicles for each cluster is limited. In addition, it resolves the competition among vehicles to access radio channels for inter-vehicle communication. Ad Hoc On-Demand Distance Vector (AODV) routing protocol is used for providing shortest path between source and destination which increases the amount of packet reception and cluster formation. Geo cache is included in VANET in order to retain directory that includes information about nodes that have left a particular cluster through neighboring nodes.